Advertisements
Advertisements
Question
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
Advertisements
Solution
Nitrogen and oxygen together make up 99% of the air.
APPEARS IN
RELATED QUESTIONS
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
Give reason:
A burning candle stops burning if covered with a glass tumbler
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
Why is air considered as a mixture?
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
Aerated water contains
Which gas is essential for burning?
How to show the presence of carbon-di-oxide in the air?
